GE P54E - Broken Current Accumulator; CB Trip Counter; Figure 122: Broken Current Accumulator Logic Diagram; Figure 123: CB Trip Counter Logic Diagram

5.1 BROKEN CURRENT ACCUMULATOR
V01272
Set Cumulative IA broken InSet
Reset
PhaseACurrent
Set Cumulative IB broken InSet
Reset
PhaseBCurrent
Set Cumulative IC broken InSet
Reset
PhaseCCurrent
Trip 3ph
1
External Trip3 ph 0
t
Trip Output A
1
External Trip A
0
t
Trip Output B
1
External Trip B 0
t
Trip Output C
1
External Trip C 0
t
Note: All timers have 1 cycle pickup delay
1
1
1
1
Reset CB Data
Reset CB Data
Note: Broken current totals not incremented when device is in test mode
Figure 122: Broken Current Accumulator logic diagram
5.2 CB TRIP COUNTER
1
V01276
Trip 3ph
External Trip3ph
Trip Output A
External Trip A
Trip Output B
External Trip B
Trip Output C
External Trip C
Reset CB Data
Reset CB Data
1
1
1
1
1
1
1
Phase A Trip Counter
Increment
Reset
Phase B Trip Counter
Increment
Reset
Phase C Trip Counter
Increment
Reset
Figure 123: CB Trip Counter logic diagram
P54A/B/C/E Chapter 12 - Monitoring and Control
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